Articulated car



E. R. VIBERG ARTICULATED CAR 2 Sheets-Sheet W Rm 3 m v YQE W. S on v m/W mud HM m N E m 1 1 N 13 FY mm /.A T M A mm r.-- B 2:1. .I. 1 3 o o W o o m m WWW mm m P W WW WW WWW x Q a 5 mm W WWW WW 2 W fiw WW WW WWW a a WW WW WWW NUT WWW w bi Oct. 29, 1929.

Filed May 25. 1928 Oct. 29, 1929. R VlBERG 4 1,733,705

ARTICULATED CAR Filed May 25. 1928 2 Sheets-Sheet 2 INVENTOR ERNEST. R.V| BERG BYJMm/ m" ATTOR Patented Oct. 29, 1929 1,733,;Ics

eATENT, F E

a use B. VIBERGQoF Moment, QUEBEC, CANADA I ARTIGULATEE GAR- Application filed May 23, 1928; seria-i No. 230m;

1, This invention relates to new and useful improvements in articulated cars and particularly to the connections between the ad jacent ends'ol thecar sections and the bogies.

The object of the invention is. to provide" connections-between the car sections and the body which w ll 'reduce'the strain on said vsections to a minimum when takinglvertical or horizontal;curves.- ,l g

Another: object is to provide connections between the central truck and'thecar sections which will eliminate ljolting and which Will allow independentsturning and swivelling movement between the sections; c Accordinglto my invention I provide an articulated'car comprising two car sections mounted on three bogies,one ateach end and one at the centre. The e'ndso'fthe sections are provided with end bearings which support rollersresti1igi onroller pathssecured to the upper part of thecentre truck. Secured to the centre truck is a" semi-spherical hearing which receives the ends of the connecting members: which are soconstructed that the twisting of the-car bodies between-the sections is" reducedto a" minimum. The ends of the sections are conne'ctedwto' the truck in arigidhmanner, but are so pivoted that the sections can move independent of one another, while turningcurves, so thatthe twisting strain on the sections is-pract'ica'lly: eliminated; i Y 1 In thedrawings which illustrate one form 'of inyinvention Figurle'l is a side elevation of an articulated car showing the truckpositions diagrammatically.- Figure 2 is'aplan view of the car shown "in Figure 1; Figure '3 is aside-elevation of oneyend of 'oneqof the car sect-ionsshowlng' the roller supporting 4 iineans. Figure 4 1sa partsectional side elevation of the truck bearing and the connect- .ing members between the saiditruckand the I lated car and 12 another section; The opposite ends'of the car rest on the'trucks' 13 and,

ing 40'securedtothe end sill 41 of the adjaadjacent ends 15 and 16- of the sections are supported on a truck 17. The Wheels 18' of truck-17 may be resiliently mounted in'the franie in any suitable manner, not shown. Only parts of thetru'ck 17 which are related to the connecting and supporting means are shown in detail. The truck 17 hasa transom 19 which for illustrative purposes only, is shown com-prising apair-of bulb angles extending from side to. side of the truck; Secured to the said angles'isthesupport, 20 which is rovidedwvith a central opening 21 to" receive and position the' semi-spherical bearing 22. The bearing 22 is secured to T14, Whichmaybe of any stan dardtype. The

the support by the bolts 23: The seini- I spherical portion 24" projects abovethe base ofthe bearing and resting thereon isthe end 25- of the connecting member 26 said end beingofse1ni-spherical shell form with the outside surface concentric with'the inner surface. A circular flarrge 27surrounds the lower 1 7 portion of the shell: The other e'nd 28 of the connecting mei'nber extends transversely of the truck andgleachtside" 30 is provided with a recess 29. The'recesses'aresemi-spherical 'ne'cting-me1nber35 extends between the other section of the car and the semi-spherical portion 24. JTheend 36' of the said member 35 is of semi spherical shell formand rests on the portion 24. This end 36 is provided with The other end transversely. of the truck'and is provided 38 oft he pinst39'pa'ssing through the bearcent'c'ar'section; The pins32' and 39 are held in place by means of the locking set screws through the semi-sphericalportions of the connecting member and the bearing is the,

the-upper end of the bolt to resiliently hold the' said portions'together. The tension of thewashers 43 is regulated by adjusting a nut ii The; aperture 45 inthe portions 1 of themen1ber35 e xtends,

with recesses 37 to receive the rounded ends I 41 passing throughthe bearingsr Passing I bolt 42,: and spring washers 43 are placedat c through which the bolts pass are preferably tapered to allow relative movement between the connections. Mounted on the upper surface 46 of the truck and radially disposed to the center of the semi-spherical bearing mounted thereon are the roller races 47. These races have a flat top surface, and the rollers are tapered with broken faces undercut forming a. lock between bracketVlS and the races, thereby providing a rigid connection for both car bodies and central connection when rounding curves. In other words, with the two sections locked to the side bearing races, the truck will absorb the twisting strains through the springs and relieve the bodies. As the relative rotative movement between the truck and thejadjacent ends of the car sections is due. to said cars having to go round small curves, the races must be made of sufiicient length so that the rollers will not disengage the races when on sharp curves. It is not necessary, however, that the races be made continuous. Secured to the ends of the car sections are the bearings 48 and rotatably mounted on pins 49 passing through the bearings are the rollers 50. The rollers rest on the runway. V

The parts shown are illustrated as regards 7 detail and it will be readily understood that modifications may be made thereto without departing from thespirit of the invention.

In operation it will be seen that the connecting members form a universalconnection between the sections, aswell as a connection between the sections and the truck. The semi-spherical bearing portions and connections to the section ends allow thesections to move independently in the vertical and horizontal directions while the car is in motion, the sections being supported on the truck andmovable therewith. The connecting members form a rigid connection which will eliminate twisting of the car bodies when starting. and stopping. The semi-spherical connections and the roller supports reduce the strain of the ends of the sections to a minimum as the sections move independently and followthe movement of the adjacent ends of the truck.

.ing semi-spherical bearings forming universal connectionswith the truck and the adjacent section.

2.1In articulated car construction, a plurality of car sections, a truck, positioned between the sections, a sectional roller race on the truck, rollers secured to the sections and resting on the roller race, a'rigid connecting member between each section and thetruck,

said connecting members having knuckle bearing connections. at each end to allow independent rotative and vertical movement between the truok and the sections.

8. In articulated car construction, a plurality of car sections, a truck positioned between the sections, roller supporting means between the sections and the truck, a rigid connecting member between each section and the truck, each arm having semi-spherical bearings at its ends co-acting 'with semiepherical projections on the truck and the sections to allow vertical and rotative movement between the truck and the sections.

4. In articulated car construction, a plurality of car sections, a truck positioned mid way between the sections, a semi-spherical bearing on'the truck, semi-spherical projections on the sections, rigid connecting members having semi-spherical recesses connect-' ing the projections. with the hearing, and means secured to the sections and restingon the truck to form a support between them.

5. In articulated car construction, a plurality of car sections, a truck positioned between bearings secured to the sections, pins passing through the last mentioned bearings and havlng rounded ends projecting horizontally from the bearings, a rigid connecting member between the pins on one. section and the bearing on the truck, said connection having semi-spherical recesses for engaging with the pins and the truck bearing, a rigid connection between the pins on the other section and a semi-spherical bearing surface formed in the other connecting member and above the centre of the truck.

7. An articulated caraccording to claim 6 having a bolt passing through the truck and the semi-spherical bearings and recesses in the connecting I members, and a resilient washer between the bearing and the bolt head.

8. In articulated car construction, a plurality of car sections, a truck positioned between them, roller races on the truck, undercut section supporting rollers resting on the races and rotatably securedto bearings secured to the adjacent ends of the sections, semi-spherical bearings secured to the truck bearings secured to the sections, pins passing through 'the' last mentioned bearings and having rounded ends projecting horizontally from the bearings, a rigid connecting member between the pins on one section and the bearing on the truck, said member having semi-sphericed recesses for engaging with the pins and the truck bearing, a rigid connecting member between the pins and the other section, said last mentioned connection having semi-spherical recesses at one end for the pins and at the other end for resting on the first-mentioned rigid connecting members, and means to resiliently hold the ends of the connecting members and the truck.

In Witness whereof I have hereunto set my hand. i

ERNEST R. VIBERG. 

